work underway on a water-discharge structure we designed for poor soil conditions
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geotechnical investigation and geohazard assessment along Highway 93S

geotechnical investigation and geohazard assessment along Highway 93S
Parks Canada Agency
Banff National Park, AB, and Kootenay National Park, BC

supporting infrastructure rehabilitation in the Canadian Rockies helps reduce potential environmental impacts

Parks Canada is investing $3 billion to rehabilitate aging infrastructure at the country’s national parks and historic sites, including 230 kilometers of Highway 93 through the Rockies from Kootenay National Park in British Columbia to the border of Jasper National Park in Alberta.

Before work could start, Parks Canada needed to take steps to mitigate impacts on the environment, wildlife, and sites of cultural significance. It chose Barr to complete an environmental impact assessment to identify potential impacts for plants, animals, soil, water, and air and then develop mitigation measures to reduce these.

On a 104-kilometer section of the highway from Kootenay to Banff National Park, we conducted a geotechnical investigation as well as a geohazard assessment to identify potential hazards and mitigation measures and support design of safety improvements. A geohazard results when the geology of an area is compromised—either naturally or by human activity—and has the potential to create widespread damage. The geotechnical investigation in support of road-widening design helped determine soil properties, site and subgrade preparation requirements, and fill placement.